html,body{
	height: 100%;
}


.foot{
	padding: 20px 0;
	background-color: #ececec;
	font-size: 12px;
	width: 100%;
	bottom: 0;
	margin-top: 100px;
}

.foot_buttom{
	width: 100%;
	text-align: center;
	color: #b5b5b5;
}

.foot_buttom_img{
	width: 160px;
	margin: 20px auto;
}